/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 14:12:48,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 14:12:48,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 14:12:48,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 14:12:48,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 14:12:48,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 14:12:48,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 14:12:48,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 14:12:48,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 14:12:48,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 14:12:48,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 14:12:48,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 14:12:48,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 14:12:48,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 14:12:48,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 14:12:48,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 14:12:48,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 14:12:48,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 14:12:48,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 14:12:48,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 14:12:48,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 14:12:48,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 14:12:48,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 14:12:48,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 14:12:48,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 14:12:48,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 14:12:48,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 14:12:48,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 14:12:48,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 14:12:48,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 14:12:48,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 14:12:48,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 14:12:48,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 14:12:48,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 14:12:48,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 14:12:48,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 14:12:48,657 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-27 14:12:48,674 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 14:12:48,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 14:12:48,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 14:12:48,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 14:12:48,677 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 14:12:48,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 14:12:48,677 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 14:12:48,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 14:12:48,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 14:12:48,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 14:12:48,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 14:12:48,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 14:12:48,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 14:12:48,680 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 14:12:48,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 14:12:48,680 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 14:12:48,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 14:12:48,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 14:12:48,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 14:12:48,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 14:12:48,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 14:12:48,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 14:12:48,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 14:12:48,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 14:12:48,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 14:12:48,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 14:12:48,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 14:12:48,683 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 14:12:48,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 14:12:48,683 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 14:12:48,985 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 14:12:49,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 14:12:49,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 14:12:49,009 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 14:12:49,010 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 14:12:49,011 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2019-12-27 14:12:49,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1d1098b3/40779d32ca444042be66bd3b2bb5cec7/FLAGde7fb3166 [2019-12-27 14:12:49,640 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 14:12:49,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2019-12-27 14:12:49,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1d1098b3/40779d32ca444042be66bd3b2bb5cec7/FLAGde7fb3166 [2019-12-27 14:12:49,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1d1098b3/40779d32ca444042be66bd3b2bb5cec7 [2019-12-27 14:12:49,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 14:12:49,937 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 14:12:49,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 14:12:49,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 14:12:49,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 14:12:49,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:12:49" (1/1) ... [2019-12-27 14:12:49,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@709f974e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:12:49, skipping insertion in model container [2019-12-27 14:12:49,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:12:49" (1/1) ... [2019-12-27 14:12:49,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 14:12:50,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 14:12:50,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:12:50,547 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 14:12:50,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:12:50,708 INFO L208 MainTranslator]: Completed translation [2019-12-27 14:12:50,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:12:50 WrapperNode [2019-12-27 14:12:50,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 14:12:50,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 14:12:50,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 14:12:50,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 14:12:50,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:12:50" (1/1) ... [2019-12-27 14:12:50,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:12:50" (1/1) ... [2019-12-27 14:12:50,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 14:12:50,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 14:12:50,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 14:12:50,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 14:12:50,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:12:50" (1/1) ... [2019-12-27 14:12:50,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:12:50" (1/1) ... [2019-12-27 14:12:50,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:12:50" (1/1) ... [2019-12-27 14:12:50,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:12:50" (1/1) ... [2019-12-27 14:12:50,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:12:50" (1/1) ... [2019-12-27 14:12:50,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:12:50" (1/1) ... [2019-12-27 14:12:50,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:12:50" (1/1) ... [2019-12-27 14:12:50,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 14:12:50,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 14:12:50,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 14:12:50,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 14:12:50,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:12:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 14:12:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 14:12:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 14:12:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 14:12:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 14:12:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 14:12:50,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 14:12:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 14:12:50,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 14:12:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 14:12:50,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 14:12:50,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 14:12:50,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 14:12:50,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 14:12:50,846 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 14:12:51,205 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 14:12:51,206 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 14:12:51,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:12:51 BoogieIcfgContainer [2019-12-27 14:12:51,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 14:12:51,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 14:12:51,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 14:12:51,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 14:12:51,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 02:12:49" (1/3) ... [2019-12-27 14:12:51,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b05de57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:12:51, skipping insertion in model container [2019-12-27 14:12:51,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:12:50" (2/3) ... [2019-12-27 14:12:51,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b05de57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:12:51, skipping insertion in model container [2019-12-27 14:12:51,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:12:51" (3/3) ... [2019-12-27 14:12:51,215 INFO L109 eAbstractionObserver]: Analyzing ICFG safe024_tso.oepc.i [2019-12-27 14:12:51,224 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 14:12:51,224 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 14:12:51,232 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 14:12:51,233 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 14:12:51,269 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,269 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,269 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,270 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,270 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,270 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,271 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,271 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,271 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,271 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,272 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,272 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,272 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,273 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,273 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,273 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,273 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,273 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,277 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,277 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,278 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,278 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,285 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,285 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,286 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,286 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,292 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,292 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,293 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,293 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:12:51,313 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 14:12:51,339 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 14:12:51,339 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 14:12:51,339 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 14:12:51,340 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 14:12:51,340 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 14:12:51,341 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 14:12:51,341 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 14:12:51,341 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 14:12:51,353 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 55 transitions [2019-12-27 14:12:51,434 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-12-27 14:12:51,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-12-27 14:12:51,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-27 14:12:51,454 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:12:51,455 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:12:51,456 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:12:51,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:12:51,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1986917389, now seen corresponding path program 1 times [2019-12-27 14:12:51,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:12:51,473 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871750105] [2019-12-27 14:12:51,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:12:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:12:51,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:12:51,924 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871750105] [2019-12-27 14:12:51,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:12:51,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 14:12:51,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304708843] [2019-12-27 14:12:51,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 14:12:51,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:12:51,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 14:12:51,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 14:12:51,954 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-12-27 14:12:52,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:12:52,091 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-12-27 14:12:52,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 14:12:52,093 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-27 14:12:52,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:12:52,118 INFO L225 Difference]: With dead ends: 1296 [2019-12-27 14:12:52,118 INFO L226 Difference]: Without dead ends: 602 [2019-12-27 14:12:52,120 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 14:12:52,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-27 14:12:52,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-12-27 14:12:52,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-12-27 14:12:52,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-12-27 14:12:52,216 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-12-27 14:12:52,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:12:52,216 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-12-27 14:12:52,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 14:12:52,217 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-12-27 14:12:52,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 14:12:52,220 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:12:52,220 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:12:52,221 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:12:52,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:12:52,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1215038929, now seen corresponding path program 1 times [2019-12-27 14:12:52,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:12:52,222 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260198872] [2019-12-27 14:12:52,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:12:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:12:52,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:12:52,383 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260198872] [2019-12-27 14:12:52,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:12:52,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 14:12:52,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264871557] [2019-12-27 14:12:52,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 14:12:52,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:12:52,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 14:12:52,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 14:12:52,388 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-12-27 14:12:52,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:12:52,472 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-12-27 14:12:52,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 14:12:52,475 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-27 14:12:52,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:12:52,486 INFO L225 Difference]: With dead ends: 602 [2019-12-27 14:12:52,487 INFO L226 Difference]: Without dead ends: 539 [2019-12-27 14:12:52,494 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:12:52,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-12-27 14:12:52,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-12-27 14:12:52,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-12-27 14:12:52,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-12-27 14:12:52,553 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-12-27 14:12:52,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:12:52,553 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-12-27 14:12:52,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 14:12:52,553 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-12-27 14:12:52,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 14:12:52,556 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:12:52,556 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:12:52,556 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:12:52,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:12:52,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1863729100, now seen corresponding path program 1 times [2019-12-27 14:12:52,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:12:52,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960569733] [2019-12-27 14:12:52,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:12:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:12:52,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:12:52,689 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960569733] [2019-12-27 14:12:52,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:12:52,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 14:12:52,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947102] [2019-12-27 14:12:52,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 14:12:52,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:12:52,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 14:12:52,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 14:12:52,691 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-12-27 14:12:52,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:12:52,782 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-12-27 14:12:52,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:12:52,783 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-27 14:12:52,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:12:52,787 INFO L225 Difference]: With dead ends: 404 [2019-12-27 14:12:52,787 INFO L226 Difference]: Without dead ends: 350 [2019-12-27 14:12:52,787 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 14:12:52,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-27 14:12:52,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-12-27 14:12:52,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-27 14:12:52,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-12-27 14:12:52,809 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-12-27 14:12:52,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:12:52,809 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-12-27 14:12:52,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 14:12:52,810 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-12-27 14:12:52,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-27 14:12:52,815 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:12:52,815 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:12:52,816 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:12:52,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:12:52,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1824391938, now seen corresponding path program 1 times [2019-12-27 14:12:52,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:12:52,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143979662] [2019-12-27 14:12:52,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:12:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:12:53,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:12:53,035 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143979662] [2019-12-27 14:12:53,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:12:53,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:12:53,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775490687] [2019-12-27 14:12:53,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:12:53,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:12:53,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:12:53,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:12:53,039 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 7 states. [2019-12-27 14:12:53,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:12:53,215 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-12-27 14:12:53,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 14:12:53,216 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-27 14:12:53,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:12:53,220 INFO L225 Difference]: With dead ends: 521 [2019-12-27 14:12:53,220 INFO L226 Difference]: Without dead ends: 278 [2019-12-27 14:12:53,222 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-27 14:12:53,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-27 14:12:53,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-12-27 14:12:53,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-12-27 14:12:53,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 727 transitions. [2019-12-27 14:12:53,237 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 727 transitions. Word has length 35 [2019-12-27 14:12:53,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:12:53,238 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 727 transitions. [2019-12-27 14:12:53,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:12:53,238 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 727 transitions. [2019-12-27 14:12:53,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-27 14:12:53,240 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:12:53,240 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:12:53,240 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:12:53,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:12:53,241 INFO L82 PathProgramCache]: Analyzing trace with hash 480987120, now seen corresponding path program 2 times [2019-12-27 14:12:53,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:12:53,242 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695296618] [2019-12-27 14:12:53,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:12:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:12:53,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:12:53,431 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695296618] [2019-12-27 14:12:53,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:12:53,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:12:53,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071416203] [2019-12-27 14:12:53,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:12:53,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:12:53,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:12:53,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:12:53,433 INFO L87 Difference]: Start difference. First operand 278 states and 727 transitions. Second operand 7 states. [2019-12-27 14:12:53,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:12:53,603 INFO L93 Difference]: Finished difference Result 440 states and 1186 transitions. [2019-12-27 14:12:53,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 14:12:53,603 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-27 14:12:53,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:12:53,607 INFO L225 Difference]: With dead ends: 440 [2019-12-27 14:12:53,607 INFO L226 Difference]: Without dead ends: 254 [2019-12-27 14:12:53,608 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-27 14:12:53,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-12-27 14:12:53,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2019-12-27 14:12:53,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-12-27 14:12:53,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 673 transitions. [2019-12-27 14:12:53,617 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 673 transitions. Word has length 35 [2019-12-27 14:12:53,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:12:53,618 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 673 transitions. [2019-12-27 14:12:53,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:12:53,618 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 673 transitions. [2019-12-27 14:12:53,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-27 14:12:53,620 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:12:53,624 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:12:53,624 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:12:53,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:12:53,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1845050856, now seen corresponding path program 3 times [2019-12-27 14:12:53,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:12:53,627 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780376843] [2019-12-27 14:12:53,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:12:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:12:53,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:12:53,769 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780376843] [2019-12-27 14:12:53,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:12:53,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 14:12:53,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645070356] [2019-12-27 14:12:53,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 14:12:53,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:12:53,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 14:12:53,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 14:12:53,773 INFO L87 Difference]: Start difference. First operand 254 states and 673 transitions. Second operand 8 states. [2019-12-27 14:12:53,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:12:53,871 INFO L93 Difference]: Finished difference Result 200 states and 511 transitions. [2019-12-27 14:12:53,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:12:53,871 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-27 14:12:53,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:12:53,872 INFO L225 Difference]: With dead ends: 200 [2019-12-27 14:12:53,872 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 14:12:53,872 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-27 14:12:53,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 14:12:53,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 14:12:53,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 14:12:53,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 14:12:53,873 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-27 14:12:53,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:12:53,873 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 14:12:53,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 14:12:53,874 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 14:12:53,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 14:12:53,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 02:12:53 BasicIcfg [2019-12-27 14:12:53,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 14:12:53,882 INFO L168 Benchmark]: Toolchain (without parser) took 3944.93 ms. Allocated memory was 146.3 MB in the beginning and 248.0 MB in the end (delta: 101.7 MB). Free memory was 102.9 MB in the beginning and 152.4 MB in the end (delta: -49.5 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. [2019-12-27 14:12:53,884 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 14:12:53,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 771.04 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.5 MB in the beginning and 159.0 MB in the end (delta: -56.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-27 14:12:53,886 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.00 ms. Allocated memory is still 203.9 MB. Free memory was 159.0 MB in the beginning and 157.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 14:12:53,886 INFO L168 Benchmark]: Boogie Preprocessor took 23.88 ms. Allocated memory is still 203.9 MB. Free memory was 157.0 MB in the beginning and 155.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 14:12:53,887 INFO L168 Benchmark]: RCFGBuilder took 424.89 ms. Allocated memory is still 203.9 MB. Free memory was 155.1 MB in the beginning and 134.4 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-27 14:12:53,888 INFO L168 Benchmark]: TraceAbstraction took 2671.72 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 134.4 MB in the beginning and 152.4 MB in the end (delta: -17.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2019-12-27 14:12:53,892 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 771.04 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.5 MB in the beginning and 159.0 MB in the end (delta: -56.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.00 ms. Allocated memory is still 203.9 MB. Free memory was 159.0 MB in the beginning and 157.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.88 ms. Allocated memory is still 203.9 MB. Free memory was 157.0 MB in the beginning and 155.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 424.89 ms. Allocated memory is still 203.9 MB. Free memory was 155.1 MB in the beginning and 134.4 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2671.72 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 134.4 MB in the beginning and 152.4 MB in the end (delta: -17.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 317 SDtfs, 363 SDslu, 868 SDs, 0 SdLazy, 110 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1249occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 20218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...